Apparatus for treating milk, &amp;c.



H. FELDMEIER & C. B. DALZELL.

APPARATUS FOB, TREATING MILK, 6:0.

APPLIATION FILED AUG. 23, 1909.

" Patented July 30, 1912.

3 SHEETS-SHEET 1.

H. PBLDMEIER & C. B. DALZELL.

APPARATUS FOR TREATING MILK, dw.

, APPLICATION FILED AUG. Z3, 1909. Patented 30,

3 SHEETS-SHEET 2.

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H. FELDMEIER & C. B. DALZELL. APPARATUS FOR TREATING MILK, dw. APPLIOATION FILED AUG.za,19o9.

Patented July 30, 1912.

3 SHEETS-SHEET 3.

and CHARLES B. DALZELL, citizens of the' UNITED sTATEs PATENT oEEIcE.

, HAnvEY FELDMEIEE AND CHARLES B. DALZELL, or LITTLETALLS, `NEWl YORK,

AssIeNons To D. H. BUERELL a COMPANY, or LITTLE- FALLs, NEW YORK.

APPARATUS Fon TEEATIEG MILK, au. i

` lSpecication of Letters Patent.

Application mea August as, -1909.

Patented July 3o, 1912;

serial No. 514,323.

To all whom t may concern.'

Be it known that We, HARVEY FELDMEIER United States, residing at Little Falls, in the county of Herkimer and State of Nevg York, have invented a new and useful Improvement in pparatus for Treating Milk,

i &c., of which the following is a specific-ation.

This invention relates to vats, holders or conduits which are employed in apparatus for pasteurizing milk and other liquids for subjecting the liquid to heat-for a sutlicient length of time to render the bacilli or germs inocuous.

In pasteurizing milk it is necessary to keep `the milk at a suitable temperature for a period, of time depending upon the tem perature to which it is heated, and it is desirable r`to keep the milk flowing uninterruptedly during this period, whereby several important advantages are gained, for inlstance the cream is prevented from rising. the milk is prevented from coating the surfaces With Which it comes in contact, foam which may have formed is dissipated, and

the process of pasteuri/zatio-n is expeditedand rendered more uniform and thorough.y

The main object of this invention is to produce a closed vat or holderL through Which the milkflows in a space or channel of such length that the -time required for the .milk'to How from one end` to the other of said channel without interrupting its flow Will be sufficient for pasteurizing the milk, While the-vat is of compact form and large capacity and of a construction which permits the surfaces with which the milk comes in contact to' be readily and thoroughly cleaned.

' I to arrange and mount the sections so that the movable sections counterbalance each other and thereby lessen 'thel labor o fnfoving them.v

In the accompanying drawings,consisting of three sheets :Figure lis a broken side elevation of a milkholder embodyingthe invention. Fig. 2 is a fragmentary cross section, on an enlarged scale, in line 2 2, Fig. 6, of one of the receptacles of the vat. Fig. 3

is a fragmentary longitudinal section thereof, on an enlarged scale, in line 3 3, Fig. 6. Fig. 4 is an end elevation, on an enlarged scale, of the' holder showing-the sections thereof separated. Fig. 5 is a'fragmentary longitudinal sectional elevation thereof in line 5--5 Fig. 4. Fig. 6 is a plan View of one o-f the vat sections showing a corner port-ion of the supportingframe in section,

section of the 'vat in line 7-7, Fig. 6.

\In line 6-.-6, Fig. 5. Fig. 7 is a longitudinal 65 i Like 'reference characters refer to like the several receptacles. There areI preferably three ofthe. receptacles thus arranged, the middle receptacle being stationarily secured in the supporting frame and the upper and lower receptacles being mounted so as to move vertically toward and from ,80

the middle receptacle.

The supporting frame may be of anysuitable construction, that shown in the drawings consisting of upright ccrnerposts A connected by end cross bars a land'topI side bars a.

B, B', B2, represent the three receptacles or sections of the vat. Each receptacle is of shallow, substantially rectangular shape and is provided With parallel vertical artitions 'b and b which extend longitudinally in the receptacle and are `alter-nately joined to the opposite end Walls thereof so as to form a longsinuoiis channel or flow space for the milk extending from one to the Other of diagonallydopposite corners ofthe receptacle.

The receptacle may be of any suitable construction, but it preferably' consists, as shown in Figs. 2,3 and 7, ofop osite end'casts100.

ings b2 joined by a metal s eet b3 which' 1s folded upon itself to form the partitions 72, and the concave bottoms of the milk spacesbetween the partitions. The ends of the portions of the sheet forming the parti tions are secured to alternate inwardly-projecting portions b4 and upright posts b5 on the end castings. The vdouble walled parti- V tions formed by the folded sheet are stitfened by thin fitting boards b". The end castings 110 are also connected by a strengthening frame consisting of upper side angle bars c, to which i vthe side edges of the metal sheet ff" are flange c4 and the lower side bars c and con` secured, lower side angle bars c which kare connected by bottom cross bars c2, and 'longitudinal bars o3 of inverted V-form which are supported by the bottom cross bars 02 between and support the concave bottoms of the milk spaces. The outwardly-projecting flanges. of the upper side bars c are joined.

at their uends to fianges onthe'end castings, thus forming an outwardly-projecting flange o* surrounding the vupper portion of the receptacle. An insulating jacket for the receptacle is formed by vertical sheet metal walls c5 secured to the outer edge of the crevices and produces a suitable surface for contact with the milk.

The milk is delivered to the upper receptacle of the vat by a suitable pipe D adapted to'be inserted in a'hole (Z in one corner ofJ the receptacle, and flows through the: .sinuous channel of this receptacle to a dis,

charge pipe d at the'diagonally opposite corner of the receptacle through which the milk flows into the adjacent end of the milk channel of the next receptacle below. The Imilk flows' through the sinuous .channel of ,the second receptacle 'and is discharged into the lower receptacle in a similar' manner, and after flowing through the channel ofthe lower receptacle passes out by a' discharge pipe d? -vprovided with; a hand valve (Z3.-

- In starting the apparatus the valve d is closed and the milk rises in the-lower receptf'tclepntil this receptacle is substantially full, when a suitable fioat actuated-valve'E,

shown by dotted lines ijn Fig. 7 therein op-l erates to shut off the discharge from. the second receptacle and the latter then fills until a similar float valve E operates to shut off the discharge forthe fupper receptacle and' allows the upper4 receptacle to fill. When the upper receptacle becomessubstantially full the milk at 'the discharge'end of. the

lower receptacle have remained in thel vat the requlred per1od oftime for pasteur- `izing it, andthe valve d3 of the discharge pipe isf opened to allow-the milk toflowfrom the vat.' Thereafterthe milk will ow continuously, or without interruption, through they vat, passing, in lsuccession through the sinuous channelsofv the several receptacles of the vat. Thefzombined length of the several'channels is such that with the milk flowing at a definite speed, a definite period of time, sufficient for the pasteurization of the milk will be required for each portion of the milk to pass lthrough the vat. For example, if the aggregate length of the milk channels is three hundred and sixty feet and the milk flows at the rate of twelve feet per minute, it will require thirty minutes for a particular portion of milk to pass through the vat.` By the described construction this length of the channels is obtained in a vat of large capacity which is nevertheless of comparatively small dimensions.

The vat receptacles are preferably mounted in the supporting frame in the following manner to allow of their separation for cleaning them, see particularly Figs. 1, 4 and 5: The middle receptacle is stationarily secured in the frame A., for which purpose the projecting" ends of the, lower side bars c thereof are bolted to the corner and end cross bars of the frame. The upper and lower. receptacles are secured to the opposite ends of four chains F which are arranged in .pairs at opposite -ends of the vat and pass around sprocket wheels f secured to two horizontal supportingshafts G journaled at the upper portion of 'the opposite ends of thel frame in suitable bearings thereon, whereby` the top and bottom receptacles are movable vertically toward and from the middle' receptacle and counterbalance each other. The chains F are preferably attached to the project-ing ends of the side bars c" of the receptacles. These bars extend close beside the corner posts of the frame and prevent undue lateral mot-ion of the receptacles when being moved. One of the supporting shafts G is connected to acrank shaft H for operating it by a chain k passing around sprocket wheels on the supporting shaft G and the crank shaft, and the two `supporting shafts are caused to turn together so as to move the opposite ends of the receptacles correspondingly and keep them always parallel-y a chain I passing around sprocket wheels 'fonthe two supporting shafts.

, K a d K', igs. l and 6, represent'hand screws passing through threaded bearings on the corner posts of the frame, the former being adapted rfor engagement with the side bars c of the bottom receptacle to lock the re- I ceptacles from movement when together, and the latter being for engagement with the side bars c of the top receptacle to lock the receptacles when separated. The v'at receptacles can be differently mounted and operatedby other suitable means to place them together in the operative position and to separate them for cleaning, and any other meansl can be employed for holding them in the 'different positions.

L, represents a cover of suitable form for closing the top receptacle. Chains Z are shown attached to the opposite ends of the hooks m on the endcross bars of the frame tacles are secured in the position shown 'in Figs'. 1 and 7, in which they are together and close each other and the supply andydischarge pipes D and d2 are connected to the circulating pipes of the pasteurizing apparatus, 'se that the milk passesv through the Vat, as explained. When it is desired tc clean the vat the cover is lifted and secured, and the upper and lower receptacles are 'respectively raised and lowered 'away from the middle receptacle by turning the crank shaft H, the screws K being lirst operated to release the receptacles. When the) receptacles are thus separated, Figs. 4 and 5, the channels thereof are opened and accessible and the receptacle can be thoroughly cleaned.

lt is obvious that the numberof sections may be increased or reduced. For instance, the stationary middle section may be omitted, in which case the two movable sec.- 'tions will close against each other and the counterbalancing feature will remain undisturbed, or one of the movable sections may be omitted, in which case the advantage of counterbalancing one section 'by another will be lost. The arrangement of sections v shown and described is, however, preferred since it produces a vat of large holding ca-l pacity in a comparatively small space and affords easy access to the flow passages for cleaning the same. The cross sectional area or How area of the flow passage or channel is of such size that all parts of the stream of liquid move through the passage or channel with a uniform, although slow, movement, whereby dead spaces in which the liquid does not moveand eddies are avoided and all parts of the liquidare subjected to the liquid to be pasteurized and having .in its :bottom a discharge opening through which the liquid is .drained from the channel, the discharge opening in the upper sectiondelivering the liquidinto the receiving endv of j the channel in the neXt lower section, sub-- stantially as set forth. 2. A pasteurizing vat comprising a plurality of superposed sections, each provided with a flow channel for the'llquid to be pasteurized and having in its bottom a discharge opening through which the liquid is drained from the channel, the discharge opening in the upper section delivering the liquid into the receiving end of the next lower section, and controlling meansV applied to said discharge openings for permitting a regulated fiow of liquid therethrough while preventing the flow of air, substantially as set forth. Y

3. A pasteurizing vat comprising a plurality of superposed sections, each provided with a flow channel for the liquid to be pasteurized and having in its bottom a discharge opening through which the liquid is drained from the channel, the discharge opening in the Iupper section delivering the liquid into the receiving end of the next lower section, and automatic valves controlling the discharge openings and operat ing to hold the liquid in the flow channels of Athe sections at a predetermined depth, subsimultaneously in'opposite directions, sub-` stantially as set forth.

6. The combinationwith a stationary supporting frame, of a vat comprising sections which are vertically movable in said frame toward and from each other, and connectin mechanism mounted fo`n said frame an moving said sections simultaneously, in op# posite directions, substantially asset forth. 7. A vat comprising three separable superposed sections, each provided with an vopentopped flow channel, the discharge end of the channel in one section discharging into the receiving end of the channel in the next lowerl section, andmechanism connecting the upper and'lower sections and operating to move thev same simultaneously toward and A as set forth.

8. The combination with al stationarysupi porting frame, of a vatcomprising ay fixed section secured to said .frame -and ,upper and lower movable sectlons arranged respectively `above and below said fixed secfrom the middle section, 'substantially tion, and mechanism for moving said movable sections against said fixed section or away from the same, substantially as setforth.

9. The combination with a stationary supporting frame, of a vat comprising-sections which are vertically movable in said frame ytoward .and from each other, rotatable shafts journaledin said frame and provided with chain "Wheels, and chains passlng over sald Wheels and connected at opposite ends `to different sections for moving said sections toWard and from each other. substantially as set forth.

,10. The combinationwithA a stationary supporting frame, of a vat comprising sectio s Which are vertically movable in said fra e/toward and from each other, a moving said cover chains to hold the cover in the raised position, substantially as set forth.

11. A receptacle comprising. opposite end pieces which form the end walls of the receptacle and are provided Withalternate up-V right posts and inwardly extending portions, and a metal sheet which connects said end pieces and fornis the bottom and side Walls of the receptacle and has folded portions attached to said upright posts and in- `wardly extending portions of the end pieces to form a. sinuous flow channel inthe receptacle, substantially as set forth.

12.` A receptacle comprising opposite end pieces, a metal sheet which connects said end pieces and forms the bottom and side walls of the receptacle and is folded to form partitions in the receptacle betweensaid side walls, vinsulating Walls spaced from sald bottom and side Walls, and a strengthening frame for i..

the receptacle connecting said'cend pieces and arranged between said metal sheet and said insulating walls, substantially as setfforth.L

13. A lreceptacle comprising opposite anged end pieces,^a metal sheet which connects said-end pieces and -forms the bottom and side walls of Jthe receptacle and is folded to form partitions in the receptacle between`said side Walls, and side bars tofwhich I the side edges of said sheet are attached and which have flanges joining the flanges of the end pieces, substantially as set forth.

Witness our hands in the presence of two subscribing witnesses.

HARVEY FELDMEIER. CHARLES B. DALZELL Witnesses:

'GRIFFITH PRICHARD, W. T. WOLFENDEN 

